What was the main purpose of having a watch during the 1800s？A．To know direction.B．To meas

A.主景抬高突出主景 the main scene is raised to highlight the main scene

B.先抑后扬的抑景手法 spatial compress first and then spatial expanding

C.色彩对比突出主景 highlights the main scene by color contrast

D.设置主题景石添景 highlight a theme scene by a rocky landscape

A.Mouth

B.Heart

C.Nose

D.Lung

A.PU、内存储器和硬盘

B.PU、内存储器、显示器和键盘

C.PU和内存储器

D.PU、内存储器、硬盘、显示器和键盘

有以下程序： include＜stclio．h＞ main() { char c； while((c=getchar())!=？)putchar(--c)； } 程序运行时，如果从键盘输入：Y？N？＜回车＞，则输出结果为【 】。

A. put

B. token

C. brought

D. set

下面程序的运行结果为()。 #include ＜iostream＞ using namespace std； class A{ public： A(){cout＜＜" "；} ～A(){cout＜＜" "；} } class B：public A{ public： B(){cout＜＜" "；} ～B(){cout＜＜" "；} } void main(){ B b； }

A．1234

B．1324

C．1342

D．3142

阅读下列程序，写出程序运行结果。

import j ava. util. StringTokenizer；

public class C3301

{

public static void main(String[] args)

{

String ss="public static void main"；

StringTokenizer pas=new StringTokenizer(ss， " ") ；

int n=pas. countTokens() ；

System. out. println(n) ；

String s=pas. nextToken() ；

for(pas. nextToken() ； pas. hasMorcTokens() ； s=pas. nextToken()

System. out. println(s) ；

}

}

有如下程序： #include＜iostream＞ using namespace std; classA { public: A(){cout＜＜"A";} }; class B{public:B(){cout＜＜"B";}}; class C:public A { B b; public: C(){cout＜＜"C";} }; int main(){C obj;return 0;} 执行后的输出结果是()

A．ABC

B．BAC

C．ACB

D．CBA

有以下程序：#include ＜stido.h＞main(){ char c1=′1′,c2=′2′;c1=getchar();c2=getchar();putchar(c1);putchar(c2);}当运行时输入：a＜回车＞后，以下叙述正确的是（）。A）变量c1被赋予字符a，c2被赋予回车符B）程序将等待用户输入第2个字符C）变量c1被赋予字符a，c2中仍是原有字符2D）变量c1被赋予字符a，c2中将无确定值

What does the cancellation of the 16-day flight mean？

A．The scientists on the ground are pursuing only their most important experiments.

B．The shuttle team will be disappointed at the curtailment of the science mission.

C．The science will complete the experiments on a later shuttle flight.

D．The remaining generators are sufficient.